Cutter bah for mowing machines



Jan. 10, 1928. Y 1,656,090

. J. H. WEBB CUTTER BAR FOR MOWING MACHINES Filed Oct. 28. 1925 2 Sheets-Sheet 1 ATroRNYs Jan. l0, 1928. 1,656,090

` J. H. WEBB CUTTER BAR FOR MOWING MACHINES Filed Oct. 28. 1925 2 Sheets-5h69?4 2 INVENTOR T ///eaz,

ATTORNEYS WITNESSES LTI Patented Jain lll, lilll testneu Application tiled llctober 28, 1925. ilerel No. 65,39%

This invention relates in general to un ini'- provenient in mowing nnichines und incre particularly to en iinprnvenient in cutter bers therefor.

The object et the invention is to provide nu improvement ot thiscliuvfieter wherein the cutter her is mounted so es te be udnpted to effectively curry out its tunetlons irre spective ot the incliiiuition ot the ,srround on which the vegetation is to be cut, the cutter ber being positionnble either liorieontully or in an upwardly or downwardly inclined position.

A still further object resides in the provision of e. machine ot this rhnructer where-- in the pitinsn is elilnineted e d the cutter ber driven in uV novel und eilicient nienueru A still further object reside-s in the provision ot a` machine having these udvsntuges and capacities end which is oit simple end durable construction, relieble und effective in operation und easy und con]puretively inexpensive to manufacture.

Other objects sind ndvzrntsges reside in certain novel tentures ol" the construction.) arrangement and combination of parts which will be hereinafter incre itully described and particularly pointed out in the appended claims, reterence being had lto the accompanying drawing-s 'forming e part ot this specification, and in wliicl Figure 1 is e trepginenturjf perspective view in itront-elevstion showingr one ein-- bodiinent oi the invention und illustrstiup; the Cutter ber in u. horizontal position9 Figure 2 is fr siniilur view showing the cutter bur in en upwardly inclined position,

Figure 3 is another similur view showing the cutter ber in :i downwardly inclined position,

Figure l is e lrugnientory perspective view ot the invention. shown in 1i and, 3,

Figure 5 s, lfrspgnientery group view in perspective showing;m the ineens employed for converting); the rotary inotion of the driven sliett into the reciprocutory move nient oit' the cutter bei', und j Figure G is n view partly in vertical seetion. sind partlyin elevsition illustrating the ineens for pivotelly supporting; the slioe on tbe hanger end the ineens ttor mountingn the driven shaft end associated' parts.

Referring to tlie drawings the nuineiul 1 designates lsgenernlly et` 'portion ot s eonventionel mowing; machine on which e, bei

CUTTER BAR FOR- llU'WItl'il'G lVlLACt-lfltillfltl.

.is suspended. lhe hunger El is termed :it its outer end with n henger bracket 3 having dinvniwn'dly er.terulinp,l spaced arms ll. A. wound-engaging shoe 5 is provided sind lies .i '.orwmgd end upwardly turnedn es at G. fldjocent its iorivurtl end the shoe 5 is provided with en integral bracket, derisignetod generally it l, en d bovine; s` vertical portion tl integr-el with or suitably connected to the shoe and :i horizontal upper portion E) integral or suitably connected to the vertical "iortion Fl. @n the underside oit the hori Zontel portion 9 lugs 1U und 11 nre provided end denne u guide 12. The guide 123 Coec'ts with, s sirnilrir (uide 13 in the shoe 5 to construira the :ictuuting block 14 o't cut ter her l5 to rectilinear rnovenient. The cutter ber 15 is slidsbly '.[itted in the guard linger 16 in the usuel way.

rthe actuating plate lll is provided with u vertical slot 17 in which s crank pin or roller 1S ot s crunk dise 19 is operatively `h'tted. The crunk disc 19 is tired on one end oit n driven ehett 20 rotatably fitted in bearings 21, 2% und 23 provided therefor in the shoe 5 rlhe bearings 21 and 22 are provided in e bushingl Zet which is mounted in beuring blocks und 26 fastened to the eutter shoe 5. The bushing` 2t projects beyond the bearing block 25 und the projecting portion provides si trunnion which is rotatably fitted in u bearing 2l formed in one of 'the ernis It ot the hunger b 'soket 3. Ain elined trunnion is provided. on the vertical portion 8 oit the bracket i und is rotatably litted in en slined bezui'ing;` 29 vforint-id in the other urin fl. ly ineuns olf these trunnions und the bearings the shoe ins y be rocked or tilted relative to the honger und yet the cutter bar indy be driven in. any singular position since the artis et tilt or swing1 of the cutter bar coincides with the :iris ot the driven shett r.the driven slisitt 90 proj eets beyond the bearingl 2l. und the projecting; portion. olA this sheitt hes u beveled gear fixed thereto. The beveled geur 30 meshes with zi similar beveled geur 3l lined to the lower end oit en inclined driving;` shuitt 32 actuated by suit able ineens, not shown, on the mowing; mit chine l.

l0 ln s mowing inzichine, s hanger l1i1v ing; e henger bracket et its lower end includ ingI spaced downwardly ettendinp;v bers jl'orined with bearings, s slice having e. brochet provided. with. s. tit ion fitted in.

one of the bearings and an oyerlianging laterally extending guide member at its up per end, a plurality of spaced bearing blocks mounted on the shoe, abushing'4 secured in a plurality of said blocks to adapt it to Witbstand strain, Said bushing havingl aV projecting` portion constituting' a trunnion rotatably fitted in the bearing; of the other arm of the hanger bracket, bearings in said bushing, a ,drivenl shaft rotatably fitted in the bearings of the bushingfand in the bearing' of the relmailling'bearing block', a cutter barcarried Y bythe shoe, and having an opstanding inember mounted to eli-de in said overhanging guide member, means for rotating the driven shaft in any angular position of the shoe. and means for 'reciprocating the cutter bar from the driven shaft. A

' 2. In a'mowing'machine, a hanger having a hangeribraclret at its lower end includingspaced' downwardly exteniling bars jornied with bearings, a shoe having a bracket provided with a trunnion fitted in one of the bearings, a plurality ot spaced bearing,

f, f Y 1,656,090

blocks mounted on the shoe5 a bueliing secured in a plurality of said bearing blocks and having a projecting` portion constituting a trunnion rotatably fitted in the bearing of the other arm, bearings in said bushing, a driven shaft rotatably fitted in the bearings oi. the bushing.,r and in the bearing ofi the remaining bearing' block, a cutter' bar carried by the. shoe, means for rotating' the driven shaft in any an- L:gular position oi' the shoe. ini-an; for reciprocating' the cutter bar from the driven shaft and comprisingv an actuation` bloek :.:e-v cured to the cutter bar. a crank dire .secured to the driven shaft. and a roller pin carried by the crank disc and engaging the alot of' the actuating' block, the shoe having a guido slot in which the lower end ofE the bloei: is slidably fitted, the bracket of the shoe` on which the trunnion is provided havin;r a laterally extending' guide overlying the guide alot and in which the upper ond of' the actuating block is slidably fitted.

JHNATHAN H. WEBB. 

